amdgpu/util_hash_table.h

/**************************************************************************
 *
 * Copyright 2008 VMware, Inc.
 * All Rights Reserved.
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 * "Software"), to deal in the Software without restriction, including
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 * permit persons to whom the Software is furnished to do so, subject to
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 * The above copyright notice and this permission notice (including the
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 * of the Software.
 *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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/**
 * General purpose hash table.
 *  
 * @author José Fonseca <jfonseca@vmware.com>
 */

#ifndef U_HASH_TABLE_H_
#define U_HASH_TABLE_H_

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "libdrm_macros.h"

/**
 * Generic purpose hash table.
 */
struct util_hash_table;

/**
 * Create an hash table.
 * 
 * @param hash hash function
 * @param compare should return 0 for two equal keys.
 */
drm_private struct util_hash_table *
util_hash_table_create(unsigned (*hash)(void *key),
		       int (*compare)(void *key1, void *key2));

drm_private void
util_hash_table_set(struct util_hash_table *ht, void *key, void *value);

drm_private void *util_hash_table_get(struct util_hash_table *ht, void *key);

drm_private void util_hash_table_remove(struct util_hash_table *ht, void *key);

drm_private void util_hash_table_clear(struct util_hash_table *ht);

drm_private void util_hash_table_foreach(struct util_hash_table *ht,
			void (*callback)(void *key, void *value, void *data),
			void *data);

drm_private void util_hash_table_destroy(struct util_hash_table *ht);

#endif /* U_HASH_TABLE_H_ */